Answer
(Fatwa: 1866/L=558-TL=1432)
If that person is excused (mazoor) as per the Shariah i.e. during the whole time of salah he does not find free time in which he can offer fardh salah by performing wudhu. If someone is excused to this extent then it is not necessary for him to perform wudhu each time after passing wind or urine drops. His wudhu will not break by wind or urine drops. However if some one is not mazoor to this extent then his wudhu shall break and it shall be necessary for him to offer salah by performing wudhu each time.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband